Astm Norms
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Estudo da influência da adição de etanol e/ou metanol ao biodiesel associado a ferramentas quimiométricas
The objective of this work is to study the influence of the addition of alcohol methanol or ethanol - to biodiesel. Therefore, Principal Components Analysis (PCA) was combined with infrared spectra with the aim of separating soybean and tallow biodiesel samples with different alcohol contents of ethanol or methanol. PCA yielded a good reduction of data regar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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2. Caracterização fisica e mecanica de painel de OSB do tipo FORM / Physical characterization and mechanics of panel of OSB : panel of OSB
Amongst the panels derived wooden from reforestation, OSB (Oriented Strand Board), that it possesses a considerable resistance, and that, therefore, it is indicated for civil construction, it comes presenting growth in its production. In this context, the objective of this work is to present specific aspects important to be observed in laboratories research
Publicado em: 2009
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3. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
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4. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
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5. Uso do software image J para análise quantitativa de imagens de microestruturas de materiais / Software development for quantitative image analysis of materials microstructure
No presente trabalho são comparadas duas formas de realizar análise de imagens: por contagem manual de tamanho de grãos e por análise automática, realizadas em imagens de cerâmicas densas usadas em sensores para monitoramento de oxigênio, obtidas por microscopia eletrônica de varredura. A distribuição de tamanhos de grãos em microestruturas de mat
Publicado em: 2008
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6. Uso do software image J para análise quantitativa de imagens de microestruturas de materiais / Software development for quantitative image analysis of materials microstructure
No presente trabalho são comparadas duas formas de realizar análise de imagens: por contagem manual de tamanho de grãos e por análise automática, realizadas em imagens de cerâmicas densas usadas em sensores para monitoramento de oxigênio, obtidas por microscopia eletrônica de varredura. A distribuição de tamanhos de grãos em microestruturas de mat
Publicado em: 2008
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7. Reciclagem de resíduo de espuma rígida de poliuretano através da incorporação de polímeros termoplásticos, ABS, PSAI e OS
Nowadays, the refrigeration industry uses the rigid polyurethane foam (PUR) as a thermal insulation and structural component in doors and cabinets of refrigerators and freezers. The waste of PUR generated in the manufacturing represents great volumes, which are considered an environmental problem. Some attempts of recycling this material have already been ex
Publicado em: 2005
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8. Desempenho fisico-mecanico e propriedades termofisicas de tijolos e mini-paineis de terra crua tratada com aditivos quimicos
The aim of this research was the studying of the effect of chemical additives (lime, Portland cement and sodium silicate) on soil in order to obtain compressed soil bricks and prismatic mini panels constructed with such a material being their physical and mechanical characteristics determined in laboratory conditions and its behavior evaluated through the as
Publicado em: 2003
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9. Estudo e desenvolvimento de compositos de polietileno de baixa intensidade (PEBD) com amido, parcialmente degradaveis no meio ambiente
The large amount of plastic waste in the environment has stimulated several important researchers to develop new products and processes that preserve the environment without blocking the growing consumption of these materials. Among several good alternatives as incineration, recycling and pyrolysis, the production of environmentally degradable polymers (EDPs
Publicado em: 2001